diff --git a/.github/workflows/backend-tests.yml b/.github/workflows/backend-tests.yml
index 485ec0cc1..333739610 100644
--- a/.github/workflows/backend-tests.yml
+++ b/.github/workflows/backend-tests.yml
@@ -22,7 +22,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         uses: actions/setup-node@v3
         with:
@@ -59,7 +59,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         uses: actions/setup-node@v3
         with:
@@ -120,7 +120,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         uses: actions/setup-node@v3
         with:
@@ -153,7 +153,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         uses: actions/setup-node@v3
         with:
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index ceb8d29b5..353217598 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -23,7 +23,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           # We must fetch at least the immediate parents so that if this is
           # a pull request then we can checkout the head.
diff --git a/.github/workflows/dependency-review.yml b/.github/workflows/dependency-review.yml
index 34b14c395..a9b8d46d9 100644
--- a/.github/workflows/dependency-review.yml
+++ b/.github/workflows/dependency-review.yml
@@ -15,6 +15,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Checkout Repository'
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: 'Dependency Review'
         uses: actions/dependency-review-action@v3
diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index 479194fb2..3056f3bfd 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -17,7 +17,7 @@ jobs:
     steps:
       -
         name: Check out
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Set up QEMU
         if: github.event_name == 'push'
diff --git a/.github/workflows/frontend-admin-tests.yml b/.github/workflows/frontend-admin-tests.yml
index 52584812c..44967124e 100644
--- a/.github/workflows/frontend-admin-tests.yml
+++ b/.github/workflows/frontend-admin-tests.yml
@@ -26,7 +26,7 @@ jobs:
           printf %s\\n '::set-output name=tunnel_id::${{ github.run_id }}-${{ github.run_number }}-${{ github.job }}-node${{ matrix.node }}'
       -
         name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         uses: actions/setup-node@v3
         with:
diff --git a/.github/workflows/frontend-tests.yml b/.github/workflows/frontend-tests.yml
index e4d0a7e45..7992e5838 100644
--- a/.github/workflows/frontend-tests.yml
+++ b/.github/workflows/frontend-tests.yml
@@ -21,7 +21,7 @@ jobs:
           printf %s\\n '::set-output name=tunnel_id::${{ github.run_id }}-${{ github.run_number }}-${{ github.job }}'
       -
         name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         uses: actions/setup-node@v3
         with:
@@ -76,7 +76,7 @@ jobs:
           printf %s\\n '::set-output name=tunnel_id::${{ github.run_id }}-${{ github.run_number }}-${{ github.job }}'
       -
         name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         uses: actions/setup-node@v3
         with:
diff --git a/.github/workflows/lint-package-lock.yml b/.github/workflows/lint-package-lock.yml
index e3401a94f..4301a992c 100644
--- a/.github/workflows/lint-package-lock.yml
+++ b/.github/workflows/lint-package-lock.yml
@@ -18,7 +18,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         uses: actions/setup-node@v3
         with:
diff --git a/.github/workflows/load-test.yml b/.github/workflows/load-test.yml
index 6eb3afad7..a6a93ddd2 100644
--- a/.github/workflows/load-test.yml
+++ b/.github/workflows/load-test.yml
@@ -18,7 +18,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         uses: actions/setup-node@v3
         with:
@@ -48,7 +48,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         uses: actions/setup-node@v3
         with:
@@ -105,7 +105,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         uses: actions/setup-node@v3
         with:
diff --git a/.github/workflows/rate-limit.yml b/.github/workflows/rate-limit.yml
index 005002b08..b11c9be3a 100644
--- a/.github/workflows/rate-limit.yml
+++ b/.github/workflows/rate-limit.yml
@@ -18,7 +18,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         uses: actions/setup-node@v3
         with:
diff --git a/.github/workflows/upgrade-from-latest-release.yml b/.github/workflows/upgrade-from-latest-release.yml
index 69eb08d8e..1433f601a 100644
--- a/.github/workflows/upgrade-from-latest-release.yml
+++ b/.github/workflows/upgrade-from-latest-release.yml
@@ -22,7 +22,7 @@ jobs:
     steps:
       -
         name: Check out latest release
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: master
       -
@@ -67,7 +67,7 @@ jobs:
       -
         name: Run the backend tests
         run: cd src && npm test
-      # Because actions/checkout@v3 is called with "ref: master" and without
+      # Because actions/checkout@v4 is called with "ref: master" and without
       # "fetch-depth: 0", the local clone does not have the ${GITHUB_SHA}
       # commit. Fetch ${GITHUB_REF} to get the ${GITHUB_SHA} commit. Note that a
       # plain "git fetch" only fetches "normal" references (refs/heads/* and
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 8869962db..acbc50fdc 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -30,7 +30,7 @@ jobs:
             rsync
       -
         name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         uses: actions/setup-node@v3
         with:
@@ -69,7 +69,7 @@ jobs:
     steps:
       -
         name: Checkout repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       -
         name: Download .zip
         uses: actions/download-artifact@v3